Question

A trailer is rented at $30 per day plus a charge per mile of use. The trailer traveled 25 miles in one day, and the total charge was $130. Which equation can be used to find the charge x, in dollars, per mile traveled?
30x + 25 = 130
30x + 25x = 130
30 + 25x = 130
30 + 25 = 130x

Answer 1

30 dollars is a constant charge for one day 
if we travel x miles we are charged 25*x  = 25x dollars so the equation is

30 + 25x = 130

Answer 2

 30 + 25x = 130sorry if i am wrong